from itertools import permutations

L,M,N=map(int,input().split())

R,B,Y=map(int,input().split())
F,G,H=2*(L+M),2*(M+N),2*(N+L)

X=float("inf")
for S in permutations([R,B,Y]):
    for T in permutations([F,G,H]):
        K=0
        for i in range(3):
            K+=S[i]*T[i]
        X=min(X,K)
print(X)